1
|P a g e
JK JK JK JK JK
; UNIT 1: INTRODUCTION
JK J K JK JK TOJKTHEJ K NATIONALJ K ELECTRICALJ K CODE®
TABLE OF CONTENTS JK JK
Unit 1 Competency Test............................................................................................................. 1
JK JK JK
UNIT1COMPETENCY TEST JK
,2
|P a g e
JK JK JK JK JK
1. The National Fire Protection Association has acted as sponsor of the
JK JK JK JK JK JK JK JK JK JK
National Electrical Code since . JK JK JK
a. NEC®Reference: Page 1 JK JK
b. Answer:1911
2. Informative Annex JK JK
provides a list of productsafetystandards use JK JK JK JK JK
d for product listing where that listing is required by the NEC.
JK JK JK JK JK JK JK JK JK JK JK
a. NEC®Reference:InformativeAnnexA
b. Answer:A
3. Which chapters in the NEC apply generally to all installations?
JK JK JK JK JK JK JK JK JK
a. NEC®Reference: 90.3 JK
b. Answer: Chapters 1, 2, 3, and 4 JK JK JK JK JK JK
4. Every three years, the National Electrical Code is revised, but the Code has only be
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
en on a three- year revision cycle since
JK JK JK . JK JK JK JK JK
a. NEC®Reference: Page 1 JK JK
b. Answer:1975
5. The purpose of the National Electrical Code is the practical safeguarding of
JK JK JK JK JK JK JK JK JK JK JK JK
JK from hazards arising from the use of electricity.
JK JK JK JK JK JK JK
a. NEC®Reference:personsand property JK
b. Answer:90.2(A)
6. The original Code document was developed
JK JK JK JK JK JK
in as aresult of th JK JK JK JK
e united efforts of various insurance, electrical, architectural, and allied intere
JK JK JK JK JK JK JK JK JK JK
sts.
a. NEC®Reference: Page 1 JK JK
b. Answer:1897
,3
|P a g e
JK JK JK JK JK
7. Informative annexes are not part of the requirements of the NEC but are included for
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
only.
a. NEC®Reference: 90.3 JK
b. Answer: informational purposes JK JK
8. What city was home to the first central-
JK JK JK JK JK JK JK
station electric generating plant developed by Thomas A. Edison?
JK JK JK JK JK JK JK JK
a. NEC®Reference: Page 2 JK JK
b. Answer: New York City JK JK JK
9. Chapter consists of tables that are applicable as referenced.
JK JK JK JK JK JK JK JK
a. NEC®Reference: 90.3 JK
b. Answer:9
10. In the NEC, UL is the abbreviation for
J K JK JK . JK JK JK J K JK
a. NEC®Reference:Annex I, footnote under Table I.3 JK JK JK JK JK
b. Answer: Underwriters Laboratories JK JK
11. Equipment that is listed, labeled, or both, or identified for a use shall be instal
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
led and used in accordance with any
JK JK JK JK JK JK JK
included in the listing, labeling JK JK JK JK
, or identification.
JK JK
a. NEC®Reference: 110.3(B) JK
b. Answer:instructions
, 3|P a g e
JK JK JK JK JK
Solutionand AnswerGuide J K
MILLER/SANDEFUR, ILLUSTRATED GUIDE JK J K J K TOJ K THEJ K NEC®, 21E, ©2024, 9780357 JK JK JK
766712; UNIT 2: DEFINITIONS® JK J K JK
TABLE OF CONTENTS JK JK
Unit 2 Competency Test............................................................................................................. 1
JK JK JK
UNIT2COMPETENCY TEST JK
1. A(n) JK
branch circuit supplies two or more receptacles o JK JK JK JK JK JK JK
r outlets for lighting and appliances.
JK JK JK JK JK
a. NEC®Reference:Article100 (Branch-Circuit,GeneralPurpose) JK
b. Answer:generalpurpose
2.
is the largest amount of current capable of being delivered at JK JK JK JK JK JK JK JK JK JK J
Ka point on the electrical system during a short-circuit condition.
JK JK JK JK JK JK JK JK JK
a. NEC®Reference: Article 100 (Fault Current, Available) JK JK JK JK
b. Answer: Available faultcurrent JK JK
3. A(n) JK
branch circuit consists of two or more ungrounded co JK JK JK JK JK JK JK JK
nductors having a potential difference between them, and a grounded conductor
JK JK JK JK JK JK JK JK JK JK
JKhaving equal potential difference between it and each ungrounded conductor of
JK JK JK JK JK JK JK JK JK JK J
Kthe circuit and that is connected to the neutral or grounded conductor of the sy
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
stem.
a. NEC®Reference: multiwire JK
b. Answer: Article100 (Branch-Circuit,Multiwire) JK JK
4. An intermittent operation in which load conditions are regularly recurre
JK JK JK JK JK JK JK JK JK
nt is the definition of .
JK JK JK JK JK
a. NEC®Reference:Article100(Duty,Periodic)
b. Answer:periodic duty
5. The JK is theconnection between the grounded- JK JK JK JK
circuit conductor and the equipment grounding conductor at the service.
JK JK JK JK JK JK JK JK JK
a. NEC®Reference: Article 100 (Bonding Jumper, Main) JK JK JK JK
b. Answer: mainbonding jumper JK JK
|P a g e
JK JK JK JK JK
; UNIT 1: INTRODUCTION
JK J K JK JK TOJKTHEJ K NATIONALJ K ELECTRICALJ K CODE®
TABLE OF CONTENTS JK JK
Unit 1 Competency Test............................................................................................................. 1
JK JK JK
UNIT1COMPETENCY TEST JK
,2
|P a g e
JK JK JK JK JK
1. The National Fire Protection Association has acted as sponsor of the
JK JK JK JK JK JK JK JK JK JK
National Electrical Code since . JK JK JK
a. NEC®Reference: Page 1 JK JK
b. Answer:1911
2. Informative Annex JK JK
provides a list of productsafetystandards use JK JK JK JK JK
d for product listing where that listing is required by the NEC.
JK JK JK JK JK JK JK JK JK JK JK
a. NEC®Reference:InformativeAnnexA
b. Answer:A
3. Which chapters in the NEC apply generally to all installations?
JK JK JK JK JK JK JK JK JK
a. NEC®Reference: 90.3 JK
b. Answer: Chapters 1, 2, 3, and 4 JK JK JK JK JK JK
4. Every three years, the National Electrical Code is revised, but the Code has only be
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
en on a three- year revision cycle since
JK JK JK . JK JK JK JK JK
a. NEC®Reference: Page 1 JK JK
b. Answer:1975
5. The purpose of the National Electrical Code is the practical safeguarding of
JK JK JK JK JK JK JK JK JK JK JK JK
JK from hazards arising from the use of electricity.
JK JK JK JK JK JK JK
a. NEC®Reference:personsand property JK
b. Answer:90.2(A)
6. The original Code document was developed
JK JK JK JK JK JK
in as aresult of th JK JK JK JK
e united efforts of various insurance, electrical, architectural, and allied intere
JK JK JK JK JK JK JK JK JK JK
sts.
a. NEC®Reference: Page 1 JK JK
b. Answer:1897
,3
|P a g e
JK JK JK JK JK
7. Informative annexes are not part of the requirements of the NEC but are included for
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
only.
a. NEC®Reference: 90.3 JK
b. Answer: informational purposes JK JK
8. What city was home to the first central-
JK JK JK JK JK JK JK
station electric generating plant developed by Thomas A. Edison?
JK JK JK JK JK JK JK JK
a. NEC®Reference: Page 2 JK JK
b. Answer: New York City JK JK JK
9. Chapter consists of tables that are applicable as referenced.
JK JK JK JK JK JK JK JK
a. NEC®Reference: 90.3 JK
b. Answer:9
10. In the NEC, UL is the abbreviation for
J K JK JK . JK JK JK J K JK
a. NEC®Reference:Annex I, footnote under Table I.3 JK JK JK JK JK
b. Answer: Underwriters Laboratories JK JK
11. Equipment that is listed, labeled, or both, or identified for a use shall be instal
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
led and used in accordance with any
JK JK JK JK JK JK JK
included in the listing, labeling JK JK JK JK
, or identification.
JK JK
a. NEC®Reference: 110.3(B) JK
b. Answer:instructions
, 3|P a g e
JK JK JK JK JK
Solutionand AnswerGuide J K
MILLER/SANDEFUR, ILLUSTRATED GUIDE JK J K J K TOJ K THEJ K NEC®, 21E, ©2024, 9780357 JK JK JK
766712; UNIT 2: DEFINITIONS® JK J K JK
TABLE OF CONTENTS JK JK
Unit 2 Competency Test............................................................................................................. 1
JK JK JK
UNIT2COMPETENCY TEST JK
1. A(n) JK
branch circuit supplies two or more receptacles o JK JK JK JK JK JK JK
r outlets for lighting and appliances.
JK JK JK JK JK
a. NEC®Reference:Article100 (Branch-Circuit,GeneralPurpose) JK
b. Answer:generalpurpose
2.
is the largest amount of current capable of being delivered at JK JK JK JK JK JK JK JK JK JK J
Ka point on the electrical system during a short-circuit condition.
JK JK JK JK JK JK JK JK JK
a. NEC®Reference: Article 100 (Fault Current, Available) JK JK JK JK
b. Answer: Available faultcurrent JK JK
3. A(n) JK
branch circuit consists of two or more ungrounded co JK JK JK JK JK JK JK JK
nductors having a potential difference between them, and a grounded conductor
JK JK JK JK JK JK JK JK JK JK
JKhaving equal potential difference between it and each ungrounded conductor of
JK JK JK JK JK JK JK JK JK JK J
Kthe circuit and that is connected to the neutral or grounded conductor of the sy
JK JK JK JK JK JK JK JK JK JK JK JK JK JK
stem.
a. NEC®Reference: multiwire JK
b. Answer: Article100 (Branch-Circuit,Multiwire) JK JK
4. An intermittent operation in which load conditions are regularly recurre
JK JK JK JK JK JK JK JK JK
nt is the definition of .
JK JK JK JK JK
a. NEC®Reference:Article100(Duty,Periodic)
b. Answer:periodic duty
5. The JK is theconnection between the grounded- JK JK JK JK
circuit conductor and the equipment grounding conductor at the service.
JK JK JK JK JK JK JK JK JK
a. NEC®Reference: Article 100 (Bonding Jumper, Main) JK JK JK JK
b. Answer: mainbonding jumper JK JK